Hangs up using TIF!
Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=397
Printed Date: 29 Apr 25 at 10:30AM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com
Topic: Hangs up using TIF!
Posted By: kukulkan
Subject: Hangs up using TIF!
Date Posted: 25 Apr 06 at 8:09AM
Hi,
I try to convert a multipage TIFF into a PDF using QuickPDF (V5.14 ActiveX-Version). Here is the code (parts):
Private Sub DoBitmap()
Dim PDF As New iSED.QuickPDF
Dim x As Long
Dim Dat As String
Dim cErr As Long
Dim Erg As Long
Dim parFilename As String
Dim E As Long
parFilename = "c:\TestDokument.tif"
PDF.UnlockKey "xxxxxxxxxxxxxx"
PDF.SetOrigin 1 ' //To top left
PDF.SetMeasurementUnits 1 ' //means millimetres
PDF.SetPageSize "A4" '
' insert all tiff-pages to pdf-pages
x = 0: Erg = 1
While Erg <> 0
x = x + 1
If x > 1 Then PDF.NewPage
Erg = PDF.AddTIFFImageFromFile(parFilename, x)
If Erg <> 0 Then
E = PDF.DrawImage(0, 0, PDF.PageWidth, PDF.PageHeight)
End If
Wend
PDF.CompressContent
PDF.SaveToFile "c:\Test.pdf"
End Sub
Using this picture (only for example. I have lots of other pictures that don't work) hangs up using 100%. It hangs on the first call of PDF.AddTIFFImageFromFile() with correct parameters (good filename and x=1).
Here is the picture: picture with about 600KB and two pages. [EDIT] removed link on 27 Apr 2006[/EDIT]
Please, can someone help me? Using JPG works fine (one page documents)!
Kukulkan
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Replies:
Posted By: chicks
Date Posted: 25 Apr 06 at 11:45AM
Haven't tried your tiff, but a possible workaround is to convert your tiff files to PDF first, then import them with QuickPDF. Here's a freeware tiff2pdf converter:
http://www.dreamsyssoft.com/tiff-to-pdf/
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Posted By: kukulkan
Date Posted: 26 Apr 06 at 3:42AM
Hi chicks,
Thank you, but I chose QuickPDF because I don't need any other dll's or programs to do my job. Now, the TIF's can't get imported. tiff2pdf is only free for freeware-products. I need it for a commercial project.
Can someone look at my code above and use my tiff to reproduce the error? Maybe someone of the code-specialists can fix the problem?
Is it possible to add a bitmap to a PDF using it's hDC or Handle? This would help in my case...
Kukulkan
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Posted By: Ingo
Date Posted: 26 Apr 06 at 5:31AM
Hi!
I've tried it with AddTIFFImageFromFile...
and it doesn't work, too. I don't have hangups but it lasts a long time (few minutes) and the resulting pdf-file has only 2kb with one blank page. With Foxit i can see it immediately - adobes reader can't make this pdf ready and hang up.
The image looks a bit strange... ;-) Perhaps you should ask how the relevant images were created?
Good luck!
Best regards,
Ingo
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Posted By: Ingo
Date Posted: 26 Apr 06 at 5:43AM
Hi Kukulkan!
I've found the problem! The tif is lzw-compressed. I've opened it with IrfanView and have saved each of the two pages as tif without lzw-compression.
This new tifs i could generate to pdf quickly. Then merging and i have the new pdf.
BTW: The tifs without lzw-compression are smaller then the one with compression ;-)
Best regards,
Ingo
Achja... Vielleicht solltest Du Dokumente dieser Art nicht einfach so ins Netz stellen...?
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Posted By: kukulkan
Date Posted: 26 Apr 06 at 5:46AM
Hi Ingo,
Thank you for your test. So it is not only my system with this problems. The image is not good, I know (it is a converted one). But the content doesn't mather here. Programs like ACDSee, Windows Imaging, Leadtools, QuickView and others can open this picture without problems. So it is definitive a bug in QuickPDF.
Is it possible to add image if I have an ImageDC or BitmapDC? This will be the only way I can handle this problem (if no one of the programmers will fix the bug).
[EDIT]Hi Ingo, thank you, but the pictures are scanned by a customer of mine and I dont have the possibility to change the format (it is an archive of 10 years).
PS. Das ist ein Spass-Text der als Gag durchs Internet ging...
Kukulkan
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Posted By: Ingo
Date Posted: 26 Apr 06 at 7:19AM
Hi again ;-)
...but you can use a small tif2jpg-component... converting the jpgs to single pdf-pages... and then merge...
Not a short way... but as a workaround... ;-)
Best regards,
Ingo
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Posted By: chicks
Date Posted: 26 Apr 06 at 12:59PM
kukulkan,
OK, downloaded your Tiff, and was able to convert it to jpg and bmp using the GDI+ API (available on Win2K and above by default, can be installed on '95 & '98) using this example:
http://www.powerbasic.com/support/forums/Forum7/HTML/002273.html
The example only does the first page, you'll need to dig into the API to do multiple pages.
Here's a compiled version of the converter for testing:
http://www.geocities.com/sea_sbs/files/gditools.zip
Note that it has a funky argument format, expecting commas between input and output paths.
Note further that AddTIFFImageFromFile() has been deprecated, should be using AddImageFromFile() instead.
Another free Tiff library is here:
http://www.libtiff.org/
It includes a bunch of tools, including one that converts multi-page Tiffs to PDFs. I have compiled it under MSYS/MinGW to Windows .exe format, but the tools are also available in compiled form. There is probably a DLL version available out there, as well.
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Posted By: kukulkan
Date Posted: 27 Apr 06 at 2:14AM
Hi chicks,
Thank you for your effort. I searched, which library's my customer has around on his systems and found freeimage-library (for another application) which is able to load theese images, too. So I load the images using freeimage and save them as JPG to add to the PDF-file (all in one loop). GDI+ would be nice, too. But the customer uses a lot of NT4 systems and I don't know if GDI+ is available on all his systems.
Thank you again, but is it a general problem using LZW coded TIF-files together with QuickPDF?
Kukulkan
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